1. The concluding act or action in a sequence of events; the last deed or performance in a play, ceremony, or series of actions
The final act of the play was the most dramatic.
O ato final da peça foi o mais dramático.
2. In legal or formal contexts, the definitive or conclusive action that completes a process
The signing of the contract was the final act in the negotiation.
A assinatura do contrato foi o ato final na negociação.
3. The last part or conclusion of a theatrical production, typically the last act of a play
We waited for the final act to see how the story would end.
Esperamos pelo ato final para ver como a história terminaria.